Two-piece welded brake-shoe.



J. M. YOUNT.

TWO-PIECE WELDED BRAKE SHOE.

APPLICATION FILED NOV. 10, 1913.

Patented Feb. 9, 1915.

UNITED STATES PATENT onto.

Jesse m. YOUNT. 01? SAN FRANCISCO, CALIFORNiA.

TWO-PIECE WELDIED luzuuuz snos.

To all whom it may concern:

Be it known that I, Jsssn MLYooxT, a citizen of the lnited States,residing at the city and county of San Francisco. and State ofCalifornia, have invented new and useful Improvements in Two-Piece'elded Brake-Shoes, of which the following is a specification.

This invention relates to brake shoes and pertains especially to a.metal brake shoei'or use on railway cars and the like.

The object of the invention is to provide a simple, practical,economical brake shoe, preferably made of two pieces electrically weldedtogether, one constituting the wearing face and the other a shoe back tofit the shoe head on the brake beam; the shoe facebeing removable andrenewable as it wears down, sothat the entire shoe does not have to bethrown away, as is the case with the shoes now generally in use.

The invention consists of the parts and the combination and constructionof parts as hereinafter more fully described and claimed, havingreference to the accompanying drawings, in Which- Figure 1 is a sideelevation of the device. Fig. 2 is a plan view of the same. Fig. 3 is across section on line mm of Fig. 1.

A represents the shoe back which is provided with the usual lug 2 toadapt it tobe fitted to the usual shoe head or brake beam,

' not necessary here to be shown. This shoe back A is preferably ofsteel and is concaved corresponding approximately to the periphery ofthe car Wheel which it is to fit.

here the brake shoe is to be used on flanged Wheels the shoe back has achamfered portion 3 to accommodate the correspondingly formed side ofthe removable shoe-face plate 4. This shoe-face plate may be of anyhard, durable material, such as Wrought or cast iron or cast steel,audit is preferred that it at least have a back'lining of steelindicated at 5, which is adaptedfto come up against thesteel shoe backA- and provide an advantageous welding surface.

' Preferably the shoe-face plate 4.- is trifle longerthan the shoe backA to'provid the end flanges 6 between which the shoe back fits; theseend flanges 6 servin to properl center the shoe-face plate on are shoebee and prevent relative end movement of the parts. The shoe-face plateand the shoe back are suitably united together by ah Specification ofLetters Patent.

Application filed November 10. 1918. Serial m5. 800,059.

witnesses.

Patented Feb. s, lei-a.

electric weldapplied around the and.

sides of the two abutting parts as shown 7; the shoe back preferal'ilyhaving ind 3 portions 8 along one, or both of its 1 tudinal edges toform pockets and at? u sullicientspace for a proper welding or" theparts at these plates. This edge welding of the two parts together insures a rigid union and a solid brake shoe with no tendency of the shoeface plate rocking on its back. Whenever the shoe-face plate isworn'down so as to have its usefulness .fillOllSly'ill'h paired, it iseasily knocked oil of the shoe back by the blow of a hammer and anothershoe-face plate quickly Welded in place by means of an appropriateWelding tool. The

shoe back and shoe-face plate are of substantially the same width inorder to give a proper support throughout the whole length and breadthof the 'shoeface plate and it is for this reason that the recesses orpockets 8 are provided so as to aiford good opportunity for asubstantially spot weld at these places.

Having thus described my invention what I claim and desire to secure byLetters Patent is- 1. A two-piece welded brake shoe consisting of a shoeback having a'steel vconcaved seat face, andla' shoe-face-plete'seatedon said shoe back and havin a corresponding adjacent curved surfacetting the concavity of the shoe back, the recessed edges and the shoeback and shoe face plate spot Welded together in these recesses,substantially as described.

v 2. A two-piece welded brake shoe consisting of a shoe had; having asteel concaved seat face, a shoe-face plate having a steelcon'vexedsurface adapted to fit and com form to the concavity. of theshoe back, the shoe-face plate having end flanges between shoe backhaving which the shoe back' fits, and said shoe back gather in these re-In testimony wheiedil' have hereunto set my hand in the presence of twosubscribing v JESSEM. room";

Witn:

W. M. KANDmn.

. back and shoe-face plate spotwelded to-

